Reply to Traktor Kontrol S2 with Pro 2

So I just picked up an S4 and am looking to sell my S2 that I bought in January of this year. It's being used solely at home, so it's never been taken to gigs or parties.


I'm including the traktor pro 2 installation disc with software serial key from the S4 I picked up.

I'm looking to get around $400 usd + shipping. US shipping only.